Winding inductance predictions of a double stator machine

Abstract

The winding inductances of a double stator machine are analyzed in this study. Finite element analysis is deployed using MAXWELL-ANSYS software. It is revealed that the machines that have even number of poles i.e. 10-pole and 14-pole, exhibited larger amount of both self and mutual inductance values. The 10-pole and 14-pole machine types have relatively larger direct-axis inductance compared to that of its 11-pole and 13-pole counterparts; nevertheless, with comparably lower quadrature-axis inductances. The machine types that have odd number of poles seem to possess lesser sensitivity to its inductance-current relation, unlike its equivalent even number of pole categories. Predicted peak magnetic axis force value on the rotor of 10-pole, 11-pole, 13-pole and 14-pole machine varieties at 30 W is: 0.18 N, 87.60 N, 10.95 N and 0.13 N, respectively.